NEWT GINGRICH: Donald Trump had a very easy answer to that truly stupid [tweet showing a semi-nude photo of his wife with a caption questioning her ability to be first lady].

The answer is simple: Melania was a supermodel on a professional shoot for a very famous magazine and I am very proud of her, and she’ll be a very beautiful first lady.

If you’d just just that an moved on, the Cruz campaign would have looked stupid, [Trump] would have seemed more disciplined, and pleasant and a genlteman, and instead he has gone down into this mud, it really has hurt him. I’m not sure anybody in the Trump campaign understands what a big mistake this is…